/**
 * Copyright 2008 Adam Ruggles.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package kiff.util.transaction;

import kiff.util.Provider;
import kiff.util.transaction.annotation.Transactional;

import org.aopalliance.intercept.MethodInterceptor;

import com.google.inject.AbstractModule;
import com.google.inject.Scopes;
import com.google.inject.TypeLiteral;
import com.google.inject.matcher.Matchers;

/**
 * Guice Entity Manager Transaction Module, binds Guice to the Entity Manager Transaction
 * implementations in this package.
 * @author Adam
 * @version $Id: EntityManagerTransactionModule.java 62 2008-10-31 04:51:50Z a.ruggles $
 * 
 * Created on Oct 14, 2008 at 11:42:42 PM 
 */
public class EntityManagerTransactionModule extends AbstractModule {

	/**
	 * {@inheritDoc}
	 * @see com.google.inject.AbstractModule#configure()
	 */
	@Override
	protected void configure() {
		bind(new TypeLiteral<Provider<Transaction>>() { })
			.to(EntityManagerTransactionProvider.class).in(Scopes.SINGLETON);
		bind(Transaction.class).toProvider(EntityManagerTransactionProvider.class).in(Scopes.SINGLETON);
		MethodInterceptor interceptor = new TransactionInterceptor();
		requestInjection(interceptor);
		// Intercept all methods for Classes with Transactional Annotation. 
		bindInterceptor(Matchers.annotatedWith(Transactional.class), Matchers.any(), interceptor);
		// Intercept methods with the Transactional Annotation for all classes.
		bindInterceptor(Matchers.any(), Matchers.annotatedWith(Transactional.class), interceptor);
	}

}
